UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY Investment Company Act file number 811-8349 Name of Fund: MuniHoldings Florida Insured Fund Fund Address: P.O. Box 9011 Princeton, NJ 08543-9011 Name and address of agent for service: Robert C. Doll, Jr., Chief Executive Officer, MuniHoldings Florida Insured Fund, 800 Scudders Mill Road, Plainsboro, NJ 08536. Mailing address: P.O. Box 9011, Princeton, NJ 08543-9011 Registrant's telephone number, including area code: (609) 282-2800 Date of fiscal year end: 08/31/05 Date of reporting period: 03/01/05 - 05/31/05 Item 1 - Schedule of Investments MuniHoldings Florida Insured Fund Schedule of Investments as of May 31, 2005 (in Thousands) Face Amount Municipal Bonds Value ----------------------------------------------------------------------------------------------------------------------------------- Florida - 150.3% $ 6,600 Alachua County, Florida, School Board, COP, 5.25% due 7/01/2029 (b) $ 7,202 -------------------------------------------------------------------------------------------------------------- 4,195 Beacon Tradeport Community Development District, Florida, Special Assessment Revenue Refunding Bonds (Commercial Project), Series A, 5.625% due 5/01/2032 (k) 4,594 -------------------------------------------------------------------------------------------------------------- Brevard County, Florida, HFA, S/F Mortgage Revenue Bonds, AMT (d)(g): 1,520 6.80% due 3/01/2028 1,542 70 (Multi-County Program), 6.30% due 3/01/2020 74 -------------------------------------------------------------------------------------------------------------- 470 Broward County, Florida, HFA, S/F Mortgage Revenue Bonds, AMT, 6.70% due 2/01/2028 (d)(g) 476 -------------------------------------------------------------------------------------------------------------- 880 Clay County, Florida, HFA, S/F Mortgage Revenue Bonds, AMT, 6.55% due 3/01/2028 (d)(i) 899 -------------------------------------------------------------------------------------------------------------- 1,320 Clay County, Florida, School Board, COP (Master Lease Program), 5.75% due 7/01/2022 (a) 1,469 -------------------------------------------------------------------------------------------------------------- 5,000 Collier County, Florida, IDA, IDR, Refunding (Southern States Utilities), AMT, 6.50% due 10/01/2025 5,167 -------------------------------------------------------------------------------------------------------------- 5,380 Dade County, Florida, HFA, S/F Mortgage Revenue Bonds, AMT, 6.70% due 4/01/2028 (d)(g) 5,494 -------------------------------------------------------------------------------------------------------------- Dade County, Florida, Water and Sewer System Revenue Bonds (h): 20,575 5.25% due 10/01/2021 21,621 21,640 5.25% due 10/01/2026 22,671 -------------------------------------------------------------------------------------------------------------- Escambia County, Florida, HFA, S/F Mortgage Revenue Refunding Bonds (Multi-County Program), AMT, Series A (a)(i): 490 6.30% due 10/01/2020 494 1,825 6.375% due 10/01/2026 1,842 -------------------------------------------------------------------------------------------------------------- 20,225 Escambia County, Florida, Health Facilities Authority, Health Facility Revenue Bonds (Florida Health Care Facility Loan), 5.95% due 7/01/2020 (b) 20,431 -------------------------------------------------------------------------------------------------------------- 5,280 Escambia County, Florida, Health Facilities Authority, Revenue Refunding Bonds (Ascension Health Credit), Series A-1, 5.75% due 11/15/2009 (b)(j) 5,905 -------------------------------------------------------------------------------------------------------------- 2,425 Florida HFA, Homeowner Mortgage Revenue Refunding Bonds, AMT, Series 2, 5.75% due 7/01/2014 (a) 2,528 -------------------------------------------------------------------------------------------------------------- 9,965 Florida HFA, Revenue Refunding Bonds, AMT, RITR, Series 12, 8.35% due 7/01/2029 (a)(f) 10,758 -------------------------------------------------------------------------------------------------------------- 1,385 Florida Housing Finance Corporation, Homeowner Mortgage Revenue Refunding Bonds, AMT, Series 4, 6.25% due 7/01/2022 (c) 1,419 -------------------------------------------------------------------------------------------------------------- 2,055 Florida Housing Finance Corporation, Housing Revenue Bonds (Waverly Apartments), AMT, Series C-1, 6.30% due 7/01/2030 (c) 2,204 -------------------------------------------------------------------------------------------------------------- Florida Municipal Loan Council Revenue Bonds, Series B (a): 1,285 5.375% due 11/01/2025 1,391 4,150 5.375% due 11/01/2030 4,492 Portfolio Abbreviations To simplify the listings of MuniHoldings Florida Insured Fund's portfolio holdings in the Schedule of Investments, we have abbreviated the names of many of the securities according to the list at right. AMT Alternative Minimum Tax (subject to) COP Certificates of Participation DRIVERS Derivative Inverse Tax-Exempt Receipts GO General Obligation Bonds HFA Housing Finance Agency IDA Industrial Development Authority IDR Industrial Development Revenue Bonds M/F Multi-Family PCR Pollution Control Revenue Bonds RIB Residual Interest Bonds RITR Residual Interest Trust Receipts S/F Single-Family MuniHoldings Florida Insured Fund Schedule of Investments as of May 31, 2005 (in Thousands) Face Amount Municipal Bonds Value ----------------------------------------------------------------------------------------------------------------------------------- $ 3,750 Florida State Board of Education, Capital Outlay, GO, Public Education, Refunding, Series D, 5.75% due 6/01/2022 (c) $ 4,208 -------------------------------------------------------------------------------------------------------------- Florida State Board of Education, Capital Outlay, GO, Public Education (j): 1,000 Series C, 5.75% due 6/01/2010 (h) 1,131 6,600 Series C, 5.75% due 6/01/2010 (h) 7,468 7,000 Series E, 5.625% due 6/01/2010 (c) 7,665 -------------------------------------------------------------------------------------------------------------- 12,725 Florida State Board of Education, Lottery Revenue Bonds, DRIVERS, Series 222, 9.432% due 7/01/2017 (f)(h) 16,672 -------------------------------------------------------------------------------------------------------------- Florida State Board of Regents, Housing Revenue Bonds (h): 2,200 (University of Central Florida), 5.25% due 10/01/2026 2,364 1,080 (University of Florida), 6% due 7/01/2018 1,226 -------------------------------------------------------------------------------------------------------------- 7,165 Florida State Board of Regents, University Systems Improvement Revenue Bonds, 5.25% due 7/01/2022 (a) 7,499 -------------------------------------------------------------------------------------------------------------- 3,505 Florida State Department of General Services, Division Facilities Management Revenue Bonds (Florida Facilities Pool), Series A, 6% due 9/01/2025 (b) 3,944 -------------------------------------------------------------------------------------------------------------- Florida State Governmental Utility Authority, Utility Revenue Bonds (b): 2,350 (Citrus Utility System), 5.125% due 10/01/2033 2,501 2,900 (Lehigh Utility System), 5.125% due 10/01/2033 3,087 -------------------------------------------------------------------------------------------------------------- Florida State Turnpike Authority, Turnpike Revenue Bonds (Department of Transportation), Series A (j): 3,590 5.50% due 7/01/2010 (a) 4,021 2,835 5.75% due 7/01/2010 3,208 -------------------------------------------------------------------------------------------------------------- 14,325 Florida State Turnpike Authority, Turnpike Revenue Bonds, DRIVERS, Series 218, 10.934% due 7/01/2029 (f)(h) 18,769 -------------------------------------------------------------------------------------------------------------- 7,135 Highlands County, Florida, Health Facilities Authority, Hospital Revenue Bonds (Adventist Health System), Series A, 6% due 11/15/2031 7,799 -------------------------------------------------------------------------------------------------------------- 4,500 Hillsborough County, Florida, IDA, PCR, Refunding (Tampa Electric Company Project), 6.25% due 12/01/2034 (a) 4,614 -------------------------------------------------------------------------------------------------------------- Hillsborough County, Florida, School Board, COP (a)(j): 6,600 5.375% due 7/01/2009 7,193 33,400 6% due 7/01/2009 37,491 -------------------------------------------------------------------------------------------------------------- 1,300 Indian River County, Florida, Water and Sewer Revenue Refunding Bonds, Series A, 5.25% due 9/01/2018 (h) 1,406 -------------------------------------------------------------------------------------------------------------- 1,800 Jacksonville, Florida, Economic Development Commission, Health Care Facilities Revenue Bonds (Mayo Clinic-Jacksonville), Series A, 5.50% due 11/15/2036 (a) 1,987 -------------------------------------------------------------------------------------------------------------- 7,305 Jacksonville, Florida, Guaranteed Entitlement Revenue Refunding and Improvement Bonds, 5.25% due 10/01/2032 (h) 7,919 -------------------------------------------------------------------------------------------------------------- Jacksonville, Florida, Port Authority, Airport Revenue Bonds, AMT, Series A (h): 1,295 6.10% due 10/01/2018 1,332 8,385 6.25% due 10/01/2024 8,630 -------------------------------------------------------------------------------------------------------------- Jacksonville, Florida, Port Authority, Seaport Revenue Bonds, AMT (a): 1,130 5.625% due 11/01/2010 (j) 1,252 1,870 5.625% due 11/01/2026 2,025 -------------------------------------------------------------------------------------------------------------- Jacksonville, Florida, Sales Tax Revenue Bonds (b): 2,000 5.50% due 10/01/2016 2,225 3,800 5.50% due 10/01/2018 4,219 -------------------------------------------------------------------------------------------------------------- MuniHoldings Florida Insured Fund Schedule of Investments as of May 31, 2005 (in Thousands) Face Amount Municipal Bonds Value ----------------------------------------------------------------------------------------------------------------------------------- $ 1,500 Jacksonville, Florida, Water and Sewer Revenue Bonds (United Water Florida Project), AMT, 6.35% due 8/01/2025 (b) $ 1,537 -------------------------------------------------------------------------------------------------------------- Lee County, Florida, Airport Revenue Bonds (c): 9,963 RIB, AMT, Series 811-X, 8.72% due 10/01/2029 (f) 12,233 1,000 Series B, 5.75% due 10/01/2033 1,106 -------------------------------------------------------------------------------------------------------------- 175 Lee County, Florida, HFA, S/F Mortgage Revenue Bonds (Multi-County Program), AMT, Series A-1, 7.20% due 3/01/2033 (d)(g) 178 -------------------------------------------------------------------------------------------------------------- 835 Lee County, Florida, HFA, S/F Mortgage Revenue Refunding Bonds, AMT, Series A-2, 6.30% due 3/01/2029 (d)(e)(g) 840 -------------------------------------------------------------------------------------------------------------- Leesburg, Florida, Capital Improvement Revenue Bonds (h): 1,605 5.25% due 10/01/2027 1,760 3,425 5.25% due 10/01/2034 3,736 -------------------------------------------------------------------------------------------------------------- 775 Manatee County, Florida, HFA, S/F Mortgage Revenue Refunding Bonds, AMT, Sub-Series 1, 6.25% due 11/01/2028 (d) 783 -------------------------------------------------------------------------------------------------------------- 1,330 Marco Island, Florida, Utility System Revenue Bonds, 5.25% due 10/01/2020 (a) 1,472 -------------------------------------------------------------------------------------------------------------- 5,990 Martin County, Florida, Utilities System Revenue Bonds, 5.125% due 10/01/2033 (b) 6,376 -------------------------------------------------------------------------------------------------------------- 2,000 Miami Beach, Florida, Redevelopment Agency, Tax Increment Revenue Bonds, City Center Tax Allocation (Historic Village), AMT, 5.875% due 12/01/2022 (a) 2,044 -------------------------------------------------------------------------------------------------------------- Miami Beach, Florida, Stormwater Revenue Bonds (h): 1,630 5.75% due 9/01/2016 1,836 1,000 5.25% due 9/01/2020 1,085 4,400 5.25% due 9/01/2025 4,724 1,910 5.375% due 9/01/2030 2,064 -------------------------------------------------------------------------------------------------------------- Miami Beach, Florida, Water and Sewer Revenue Bonds (b): 2,690 5.625% due 9/01/2018 3,005 10,600 5.75% due 9/01/2025 11,763 -------------------------------------------------------------------------------------------------------------- Miami-Dade County, Florida, Aviation Revenue Bonds: 4,210 AMT, Series A, 5.125% due 10/01/2035 (c) 4,383 10,000 (Miami International Airport), AMT, Series A, 6% due 10/01/2029 (h) 11,139 11,040 (Miami International Airport), Series B, 5% due 10/01/2037 (h) 11,598 6,000 (Miami International Airport), AMT, Series A, 6% due 10/01/2024 (h) 6,684 -------------------------------------------------------------------------------------------------------------- Miami-Dade County, Florida, Educational Facilities Authority Revenue Bonds (University of Miami), Series A (b): 1,000 5.50% due 4/01/2019 1,102 19,425 6% due 4/01/2023 21,804 5,000 5.75% due 4/01/2029 5,512 -------------------------------------------------------------------------------------------------------------- Miami-Dade County, Florida, Expressway Authority, Toll System Revenue Bonds, Series B (h): 8,995 5.25% due 7/01/2027 9,830 10,375 5% due 7/01/2033 10,972 -------------------------------------------------------------------------------------------------------------- 12,250 Miami-Dade County, Florida, Expressway Authority, Toll System Revenue Refunding Bonds, 5.125% due 7/01/2025 (h) 13,139 -------------------------------------------------------------------------------------------------------------- 6,705 Miami-Dade County, Florida, GO (Parks Program), 6% due 11/01/2024 (h) 7,504 -------------------------------------------------------------------------------------------------------------- MuniHoldings Florida Insured Fund Schedule of Investments as of May 31, 2005 (in Thousands) Face Amount Municipal Bonds Value ----------------------------------------------------------------------------------------------------------------------------------- $ 2,185 Miami-Dade County, Florida, HFA, M/F Mortgage Revenue Bonds (Marbrisa Apartments Project), AMT, Series 2A, 6% due 8/01/2026 (c) $ 2,344 -------------------------------------------------------------------------------------------------------------- Miami-Dade County, Florida, IDA, IDR (b): 5,100 (Airis Miami II LLC Project), AMT, 6% due 10/15/2019 5,626 3,280 (BAC Funding Corporation Project), Series A, 5.25% due 10/01/2020 3,586 -------------------------------------------------------------------------------------------------------------- Miami-Dade County, Florida, Solid Waste System Revenue Bonds: 2,945 5.50% due 10/01/2015 (c) 3,273 3,105 5.50% due 10/01/2016 (c) 3,451 8,800 5.25% due 10/01/2030 (a) 9,676 -------------------------------------------------------------------------------------------------------------- Nassau County, Florida, Public Improvement Revenue Refunding Bonds (a): 1,035 5.75% due 5/01/2016 1,162 1,095 5.75% due 5/01/2017 1,229 1,155 5.75% due 5/01/2018 1,295 1,225 5.75% due 5/01/2019 1,373 -------------------------------------------------------------------------------------------------------------- 5,175 Nassau County, Florida, Water and Sewer System Revenue Bonds, 5.125% due 9/01/2033 (a) 5,506 -------------------------------------------------------------------------------------------------------------- 25 Orange County, Florida, HFA, Homeowner Revenue Refunding Bonds, AMT, Series B-1, 6.20% due 9/01/2029 (d)(g) 26 -------------------------------------------------------------------------------------------------------------- 2,375 Orange County, Florida, HFA, M/F Housing Revenue Bonds, Series A, 6.40% due 1/01/2031 (a) 2,478 -------------------------------------------------------------------------------------------------------------- 1,705 Orange County, Florida, HFA, S/F Mortgage Revenue Bonds, AMT, 6.85% due 10/01/2027 (d)(g) 1,741 -------------------------------------------------------------------------------------------------------------- Orange County, Florida, Health Facilities Authority, Hospital Revenue Bonds: 2,900 (Adventist Health System), 6.25% due 11/15/2024 3,246 9,220 (Orlando Regional Healthcare), 6% due 12/01/2029 10,093 5,000 (Orlando Regional Healthcare), Series A, 6.25% due 10/01/2018 (a) 6,148 -------------------------------------------------------------------------------------------------------------- 1,300 Orange County, Florida, School Board COP, 5.50% due 8/01/2025 (b) 1,408 -------------------------------------------------------------------------------------------------------------- Orange County, Florida, Tourist Development, Tax Revenue Bonds (b): 5,710 5.375% due 10/01/2009 (j) 6,247 2,000 5.50% due 10/01/2009 (j) 2,198 31,745 5.75% due 10/01/2009 (j) 35,212 27,075 5.50% due 10/01/2032 29,752 -------------------------------------------------------------------------------------------------------------- Orlando and Orange County, Florida, Expressway Authority Revenue Bonds, Series B (b): 3,250 5% due 7/01/2030 3,433 28,700 5% due 7/01/2035 30,219 -------------------------------------------------------------------------------------------------------------- Osceola County, Florida, Infrastructure Sales Surplus Tax Revenue Bonds (b): 3,155 5.375% due 10/01/2018 3,513 7,680 5.25% due 10/01/2025 8,340 -------------------------------------------------------------------------------------------------------------- Osceola County, Florida, Sales Tax Revenue Bonds (h): 2,065 5.625% due 6/01/2016 2,323 1,605 5.625% due 6/01/2017 1,803 1,075 5.625% due 6/01/2018 1,207 -------------------------------------------------------------------------------------------------------------- MuniHoldings Florida Insured Fund Schedule of Investments as of May 31, 2005 (in Thousands) Face Amount Municipal Bonds Value ----------------------------------------------------------------------------------------------------------------------------------- $ 4,240 Osceola County, Florida, School Board, COP, Series A, 5.25% due 6/01/2027 (b) $ 4,593 -------------------------------------------------------------------------------------------------------------- 5,560 Osceola County, Florida, Tourist Development Tax Revenue Bonds, Series A, 5.50% due 10/01/2027 (h) 6,145 -------------------------------------------------------------------------------------------------------------- Palm Beach County, Florida, GO (Liquid Acquisition Program), Series B (a): 4,605 5.75% due 8/01/2016 5,094 5,330 5.75% due 8/01/2018 5,887 -------------------------------------------------------------------------------------------------------------- Palm Beach County, Florida, Public Improvement Revenue Bonds (Convention Center Project) (h)(j): 5,500 5.625% due 11/01/2011 6,251 -------------------------------------------------------------------------------------------------------------- 6,115 Palm Beach County, Florida, School Board COP, Refunding, Series B, 5.375% due 8/01/2017 (b) 6,776 -------------------------------------------------------------------------------------------------------------- Palm Beach County, Florida, School Board COP, Series A (j): 5,070 6% due 8/01/2010 (h) 5,805 13,205 6.25% due 8/01/2010 (h) 15,275 4,235 5.50% due 8/01/2011 (b) 4,802 -------------------------------------------------------------------------------------------------------------- 2,070 Pembroke Pines, Florida, Public Improvement Revenue Bonds, Series A, 5% due 10/01/2034 (b) 2,197 -------------------------------------------------------------------------------------------------------------- 9,885 Polk County, Florida, School Board COP, Master Lease, Series A, 5.50% due 1/01/2025 (c) 10,793 -------------------------------------------------------------------------------------------------------------- 9,645 Pompano Beach, Florida, Water and Sewer Revenue Bonds, 6% due 7/01/2020 (h) 10,299 -------------------------------------------------------------------------------------------------------------- Port St. Lucie, Florida, Utility Revenue Bonds (a): 1,280 5.25% due 9/01/2026 1,404 1,345 5.25% due 9/01/2027 1,474 -------------------------------------------------------------------------------------------------------------- Saint Johns County, Florida, IDA, IDR, Refunding (Professional Golf Project) (a): 1,275 5.50% due 9/01/2015 1,427 1,345 5.50% due 9/01/2016 1,498 1,420 5.50% due 9/01/2017 1,580 1,500 5.50% due 9/01/2018 1,667 -------------------------------------------------------------------------------------------------------------- Saint Johns County, Florida, Sales Tax Revenue Bonds, GO (b): 1,375 Series A, 5.25% due 10/01/2028 1,505 1,355 Series A, 5.25% due 10/01/2031 1,479 2,000 Series A, 5.25% due 10/01/2034 2,182 1,430 Series B, 5.25% due 10/01/2027 1,568 840 Series B, 5.25% due 10/01/2032 916 -------------------------------------------------------------------------------------------------------------- 3,500 Saint Johns County, Florida, Transportation Improvement Revenue Bonds, 5.125% due 10/01/2032 (b) 3,726 -------------------------------------------------------------------------------------------------------------- 4,055 Saint Lucie County, Florida, School Board, COP, 6.25% due 7/01/2010 (c)(j) 4,684 -------------------------------------------------------------------------------------------------------------- Saint Lucie County, Florida, School Board, COP, Refunding (c): 1,120 Series A, 5.50% due 7/01/2017 1,244 1,495 Series A, 5.50% due 7/01/2018 1,658 1,105 Series C, 5.50% due 7/01/2017 1,227 1,170 Series C, 5.50% due 7/01/2018 1,298 -------------------------------------------------------------------------------------------------------------- MuniHoldings Florida Insured Fund Schedule of Investments as of May 31, 2005 (in Thousands) Face Amount Municipal Bonds Value ----------------------------------------------------------------------------------------------------------------------------------- Saint Lucie, Florida, West Services District, Utility Revenue Bonds (a): $ 1,720 5.25% due 10/01/2034 $ 1,888 4,750 5% due 10/01/2038 5,049 -------------------------------------------------------------------------------------------------------------- 3,250 Saint Lucie, Florida, West Services District, Utility Revenue Refunding Bonds, Senior Lien, 6% due 10/01/2022 (a) 3,710 -------------------------------------------------------------------------------------------------------------- 1,750 South Lake County, Florida, Hospital District Revenue Bonds (South Lake Hospital Inc.), 5.80% due 10/01/2034 1,842 -------------------------------------------------------------------------------------------------------------- Sunrise, Florida, Utility System Revenue Refunding Bonds (b): 8,000 5.50% due 10/01/2018 9,270 2,250 5.20% due 10/01/2022 2,550 -------------------------------------------------------------------------------------------------------------- 2,430 Sunrise Lakes, Florida, Phase 4 Recreation District, Refunding Bonds, GO, 5.25% due 8/01/2024 (b) 2,547 -------------------------------------------------------------------------------------------------------------- Tallahassee, Florida, Lease Revenue Bonds (Florida State University Project), Series A (a): 2,800 5.25% due 8/01/2023 2,993 1,000 5.375% due 8/01/2026 1,080 -------------------------------------------------------------------------------------------------------------- 30,335 Tampa Bay, Florida, Water Utility System Revenue Bonds, 6% due 10/01/2011 (h)(j) 35,093 -------------------------------------------------------------------------------------------------------------- 14,750 Tampa, Florida, Sports Authority Revenue Bonds (Local Option Sales Tax - Stadium Project), 5.25% due 1/01/2027 (a) 15,288 -------------------------------------------------------------------------------------------------------------- 3,835 Taylor County, Florida, Sales Tax Revenue Bonds, 6% due 10/01/2010 (h)(j) 4,370 -------------------------------------------------------------------------------------------------------------- 8,935 University of Central Florida (UCF) Athletics Association Inc., COP, Series A, 5.25% due 10/01/2034 (h) 9,674 -------------------------------------------------------------------------------------------------------------- Village Center Community Development District, Florida, Recreational Revenue Bonds, Series A (a): 10,775 5.375% due 11/01/2034 11,921 1,750 5.125% due 11/01/2036 1,878 -------------------------------------------------------------------------------------------------------------- 3,000 Village Center Community Development District, Florida, Utility Revenue Bonds, 5.25% due 10/01/2023 (a) 3,283 ----------------------------------------------------------------------------------------------------------------------------------- District of 2,050 Metropolitan Washington Airports Authority, D.C., Airport System Revenue Bonds, AMT, Columbia - 0.4% Series A, 5.25% due 10/01/2032 (h) 2,153 ----------------------------------------------------------------------------------------------------------------------------------- Pennsylvania - 1.7% 1,680 Delaware County, Pennsylvania, IDA, Water Facilities Revenue Bonds (Aqua Pennsylvania Inc. Project), AMT, Series A, 5% due 11/01/2037 (h) 1,737 -------------------------------------------------------------------------------------------------------------- 7,700 Delaware County, Pennsylvania, IDA, Water Facilities Revenue Refunding Bonds (Aqua Pennsylvania Inc. Project), AMT, Series B, 5% due 11/01/2036 (h) 7,963 ----------------------------------------------------------------------------------------------------------------------------------- Texas - 3.6% 20,350 San Antonio, Texas, Convention Center Hotel Finance Corporation, Contract Revenue Empowerment Zone Bonds, AMT, Series A, 5% due 7/15/2034 (b) 20,997 ----------------------------------------------------------------------------------------------------------------------------------- Puerto Rico - 3.1% 3,000 Puerto Rico Commonwealth, GO, Public Improvement, 6% due 7/01/2005 (j) 3,038 -------------------------------------------------------------------------------------------------------------- 10,125 Puerto Rico Commonwealth Highway and Transportation Authority, Transportation Revenue Bonds, Series B, 6% due 7/01/2005 (j) 10,253 -------------------------------------------------------------------------------------------------------------- 1,580 Puerto Rico Electric Power Authority, Power Revenue Bonds, Series RR, 5% due 7/01/2029 (l) 1,691 -------------------------------------------------------------------------------------------------------------- 2,725 Puerto Rico Industrial Tourist, Educational, Medical and Environmental Control Facilities Revenue Bonds (University Plaza Project), Series A, 5.625% due 7/01/2019 (a) 3,031 ----------------------------------------------------------------------------------------------------------------------------------- Total Municipal Bonds (Cost - $856,567) - 159.1% 920,398 ----------------------------------------------------------------------------------------------------------------------------------- MuniHoldings Florida Insured Fund Schedule of Investments as of May 31, 2005 (in Thousands) Shares Held Short-Term Securities Value ----------------------------------------------------------------------------------------------------------------------------------- 18,135 Merrill Lynch Institutional Tax-Exempt Fund (m) $ 18,135 ----------------------------------------------------------------------------------------------------------------------------------- Total Short-Term Securities (Cost - $18,135) - 3.1% 18,135 ----------------------------------------------------------------------------------------------------------------------------------- Total Investments (Cost - $874,702*) - 162.2% 938,533 Other Assets Less Liabilities - 0.6% 3,494 Preferred Shares, at Redemption Value - (62.8%) (363,399) --------- Net Assets Applicable to Common Shares - 100.0% $ 578,628 ========= * The cost and unrealized appreciation (depreciation) of investments as of May 31, 2005, as computed for federal income tax purposes, were as follows: (in Thousands) -------------------------------------------------------------------------- Aggregate cost $ 875,443 ============= Gross unrealized appreciation $ 64,085 Gross unrealized depreciation (995) ------------- Net unrealized appreciation $ 63,090 ============= (a) MBIA Insured. (b) AMBAC Insured. (c) FSA Insured. (d) GNMA Collateralized. (e) FHLMC Collateralized. (f) The rate disclosed is that currently in effect. This rate changes periodically and inversely based upon prevailing market rates. (g) FNMA Collateralized. (h) FGIC Insured. (i) FHA Insured. (j) Prerefunded. (k) Radian Insured. (l) CIFG Insured. (m) Investments in companies considered to be an affiliate of the Fund (such companies are defined as "Affiliated Companies" in Section 2(a)(3) of the Investment Company Act of 1940) were as follows: (in Thousands) -------------------------------------------------------------------------- Net Dividend Affiliate Activity Income -------------------------------------------------------------------------- Merrill Lynch Institutional Tax-Exempt Fund 7,800 $162 -------------------------------------------------------------------------- MuniHoldings Florida Insured Fund Schedule of Investments as of May 31, 2005 Forward interest rate swaps outstanding as of May 31, 2005 were as follows: (in Thousands) -------------------------------------------------------------------------- Notional Unrealized Amount Depreciation -------------------------------------------------------------------------- Receive a variable rate equal to 7-Day Bond Market Association Municipal Swap Index Rate and pay a fixed rate equal to 3.702% Broker, JPMorgan Chase Bank Expires July 2015 $ 65,000 $ (1,417) -------------------------------------------------------------------------- Item 2 - Controls and Procedures 2(a) - The registrant's certifying officers have reasonably designed such disclosure controls and procedures to ensure material information relating to the registrant is made known to us by others particularly during the period in which this report is being prepared. The registrant's certifying officers have determined that the registrant's disclosure controls and procedures are effective based on our evaluation of these controls and procedures as of a date within 90 days prior to the filing date of this report. 2(b) - There were no changes in the registrant's internal control over financial reporting (as defined in Rule 30a-3(d) under the Act (17 CFR 270.30a-3(d)) that occurred during the last fiscal quarter of the period covered by this report that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting. Item 3 - Exhibits Certifications - Attached hereto Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. MuniHoldings Florida Insured Fund By: /s/ Robert C. Doll, Jr. --------------------------- Robert C. Doll, Jr. Chief Executive Officer MuniHoldings Florida Insured Fund Date: July 15, 2005 Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated. By: /s/ Robert C. Doll, Jr. --------------------------- Robert C. Doll, Jr. Chief Executive Officer MuniHoldings Florida Insured Fund Date: July 15, 2005 By: /s/ Donald C. Burke --------------------------- Donald C. Burke Chief Financial Officer MuniHoldings Florida Insured Fund Date: July 15, 2005